The problem is that you still need to poll every single feed. SUP allows you to instead poll a single url. See the "update" note at the bottom of http://blog.fr

The problem is that you still need to poll every single feed. SUP allows you to instead poll a single url. See the "update" note at the bottom of http://blog.friendfeed.com/2008/08/simple-update-protocol-fetch-updates.html http://blog.friendfeed.com/2008/08/simple-update-protocol-fe... for more details.